Gallium Oxide Nanorods: Novel, Template-Free Synthesis and High Catalytic Activity in Epoxidation Reactions

Gallium oxide nanorods with unprecedented small dimensions (20–80 nm length and 3–5 nm width) were prepared using a novel, template‐free synthesis method. This nanomaterial is an excellent heterogeneous catalyst for the sustainable epoxidation of alkenes with H2O2, rivaling the industrial benchmark...

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Veröffentlicht in:Angewandte Chemie International Edition Jg. 53; H. 6; S. 1585 - 1589
Hauptverfasser: Lueangchaichaweng, Warunee, Brooks, Neil R., Fiorilli, Sonia, Gobechiya, Elena, Lin, Kaifeng, Li, Li, Parres-Esclapez, Sonia, Javon, Elsa, Bals, Sara, Van Tendeloo, Gustaaf, Martens, Johan A., Kirschhock, Christine E. A., Jacobs, Pierre A., Pescarmona, Paolo P.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Weinheim WILEY-VCH Verlag 03.02.2014
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Ausgabe:International ed. in English
Schlagworte:
Alkenes
Catalysts
Epoxidation
Gallium
gallium oxide
Gallium oxides
heterogeneous catalysis
Hydrogen peroxide
Nanorods
Nanostructure
Physicochemical properties
R&D
Research & development
Specific surface
Synthesis
gallium oxide
epoxidation
heterogeneous catalysis
nanorods
hydrogen peroxide
ISSN:1433-7851, 1521-3773, 1521-3773
Online-Zugang:Volltext
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Zusammenfassung:Gallium oxide nanorods with unprecedented small dimensions (20–80 nm length and 3–5 nm width) were prepared using a novel, template‐free synthesis method. This nanomaterial is an excellent heterogeneous catalyst for the sustainable epoxidation of alkenes with H2O2, rivaling the industrial benchmark microporous titanosilicate TS‐1 with linear alkenes and being much superior with bulkier substrates. A thorough characterization study elucidated the correlation between the physicochemical properties of the gallium oxide nanorods and their catalytic performance, and underlined the importance of the nanorod morphology for generating a material with high specific surface area and a high number of accessible acid sites. Selective epoxidation: Gallium oxide nanorods with unprecedented small dimensions (20–80 nm length and 3–5 nm width) were prepared using a novel, template‐free synthesis method. The nanorods are much superior to conventional gallium oxide both in terms of specific surface area and number of acid sites and display excellent performance as epoxidation catalyst with H2O2 as the oxidant (see picture).
Bibliographie:Prodex
ArticleID:ANIE201308384
ERC - No. 24691; No. 335078
This work was supported by START1, Methusalem, Prodex, IAP-PAI, and the ERC (grant number 24691-COUNTATOMS and grant number 335078-COLOURATOM) projects. The authors acknowledge Dr. K. Houthoofd, G. Vanbutsele, Dr. C. Klaysom, Prof. J. W. Seo, Dr. T. Korányi, and Prof. K. Binnemans for their support in the characterizations, and Dr. C. Özdilek for useful scientific discussions.
Methusalem
IAP-PAI
istex:C2D7C264D44005C65DC00CABB3FD88B2EB6B9262
ark:/67375/WNG-51VWBCRP-V
START1
This work was supported by START1, Methusalem, Prodex, IAP‐PAI, and the ERC (grant number 24691—COUNTATOMS and grant number 335078—COLOURATOM) projects. The authors acknowledge Dr. K. Houthoofd, G. Vanbutsele, Dr. C. Klaysom, Prof. J. W. Seo, Dr. T. Korányi, and Prof. K. Binnemans for their support in the characterizations, and Dr. C. Özdilek for useful scientific discussions.
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ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.201308384